Diarrhea, dizziness, headache, or stomach upset may occur. If any of these effects
persist or worsen, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has
judged that the benefit to you is greater than the risk of side effects. Many
people using this medication do not have serious side effects.
Tell your doctor immediately if any of these unlikely but serious side effects
occur: mental/mood changes (e.g., agitation, confusion).
Tell your doctor immediately if any of these rare but very serious side effects
occur: severe stomach/abdominal pain, persistent nausea/vomiting, yellowing
eyes/skin, dark urine, change in the amount of urine, new signs of infection
(e.g., fever, persistent sore throat), easy bruising/bleeding.
This medication may rarely cause a severe intestinal condition (pseudomembranous
colitis) due to a resistant bacteria. This condition may occur during treatment
or weeks to months after treatment has stopped. Tell your doctor immediately
if you develop persistent diarrhea, abdominal or stomach pain/cramping, blood/mucus
in your stool. Do not use anti-diarrhea products or narcotic pain medications
if you have any of these symptoms because these products may make them worse.
Use of this medication for prolonged or repeated periods may result in oral
thrush or a new vaginal yeast infection. Contact your doctor if you notice white
patches in your mouth, a change in vaginal discharge, or other new symptoms.
A very serious allergic reaction to this drug is rare. However, seek immediate
medical attention if you notice any symptoms of a serious allergic reaction,
including: rash, itching/swelling (especially of the face/tongue/throat), severe
dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects
not listed above, contact your doctor or pharmacist.